30,063 research outputs found

    Flooding through the lens of mobile phone activity

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    Natural disasters affect hundreds of millions of people worldwide every year. Emergency response efforts depend upon the availability of timely information, such as information concerning the movements of affected populations. The analysis of aggregated and anonymized Call Detail Records (CDR) captured from the mobile phone infrastructure provides new possibilities to characterize human behavior during critical events. In this work, we investigate the viability of using CDR data combined with other sources of information to characterize the floods that occurred in Tabasco, Mexico in 2009. An impact map has been reconstructed using Landsat-7 images to identify the floods. Within this frame, the underlying communication activity signals in the CDR data have been analyzed and compared against rainfall levels extracted from data of the NASA-TRMM project. The variations in the number of active phones connected to each cell tower reveal abnormal activity patterns in the most affected locations during and after the floods that could be used as signatures of the floods - both in terms of infrastructure impact assessment and population information awareness. The representativeness of the analysis has been assessed using census data and civil protection records. While a more extensive validation is required, these early results suggest high potential in using cell tower activity information to improve early warning and emergency management mechanisms.Comment: Submitted to IEEE Global Humanitarian Technologies Conference (GHTC) 201

    Sandy Regional Assembly Recovery Agenda

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    On January 26, 2013, nearly 200 participants representing over 40 community, environmental justice, labor and civic groups from across New York City, New Jersey and Long Island -- from the neighborhoods most impacted by Superstorm Sandy, and most vulnerable to future storm surges convened the Sandy Regional Assembly to strategize how government officials should implement a Sandy rebuilding program.In April 2013, these groups presented their Sandy Regional Assembly Recovery Agenda -- the first regional grassroots Sandy rebuilding and resiliency plan. The Recovery Agenda was a mix of suggested capital projects and policy recommendations, designed to advance 3 goals:Integrate regional rebuilding efforts with local resiliency priorities;Strengthen vulnerable communities & reduce public health threats, andExpand community-based climate change planning, disaster preparedness & response

    How can we use mobile apps for disaster communications in Taiwan: Problems and possible practice

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    The growth rate of global smart phone in 2010 is as high as 78.1%, showing that smart phone gradually becomes the mainstream in the mobile phone market. Smart phone has the function of installing applications, provides users with more diversified mobile value-added services and will change users' communication habits in the future. Mobile communication follows the development trend of 3G and WiMAX, make users can link with mobile software stores through internet, downloading all kinds of applications, which has provided human beings with more diversified information, and gradually changed people's living habits. With the widespread of smart phone in Taiwan and many mobile applications start to go popular in market, people are crazy about downloading mobile applications, and different applications create different types of communications. Within a trend of smart phone and massive mobile apps go popular in Taiwan, what can we do to apply these tools for disaster communications? And compare to other infrastructure-level support, is mobile app a feasible route for disaster communications? What is the possible uses and challenges. --

    Performance Measures to Assess Resiliency and Efficiency of Transit Systems

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    Transit agencies are interested in assessing the short-, mid-, and long-term performance of infrastructure with the objective of enhancing resiliency and efficiency. This report addresses three distinct aspects of New Jersey’s Transit System: 1) resiliency of bridge infrastructure, 2) resiliency of public transit systems, and 3) efficiency of transit systems with an emphasis on paratransit service. This project proposed a conceptual framework to assess the performance and resiliency for bridge structures in a transit network before and after disasters utilizing structural health monitoring (SHM), finite element (FE) modeling and remote sensing using Interferometric Synthetic Aperture Radar (InSAR). The public transit systems in NY/NJ were analyzed based on their vulnerability, resiliency, and efficiency in recovery following a major natural disaster

    National and urban public policy agenda in tourism. Towards the emergence of a hyperneoliberal script?

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    Following the 2007–2009 Global Financial Crisis (GFC), some national governments have been pursuing a counter-reform of the public sector characterised by further policy centralisation and the ‘hollowing out’ of regional authorities. Public expenditure and sovereign public debt reductions have become the pretext for the implementation of hyperneoliberal development agendas aimed at the attraction of inward capitals and a further ‘competitive’ repositioning of major cities within a global market. Tourism and the visitor economy have been used as leverage for the attraction of capital and skilled people in the long-term development strategies of cities. This article illustrates how crises have led the way in the recent restructuring of the public sector and of destination management organisations (DMOs) in particular. Findings from national and urban development strategies recently implemented in New Zealand suggest a strong, market-driven agenda that follows a hyperneoliberal script

    Adapting the community sector for climate extremes

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    Abstract People experiencing poverty and inequality will be affected first and worst by the impacts of climate change to infrastructure and human settlements, including those caused by increasingly frequent and intense extreme weather events and natural disasters. They have the least capacity to cope, to adapt, to move and to recover. Community service organisations (CSOs) play a critical role in supporting individuals, families and communities experiencing poverty and inequality to build resilience and respond to adverse changes in circumstances. As such, the services they provide comprise a critical component of social infrastructure in human settlements. However, very little is understood about CSOs own vulnerability to – or their role in managing and mitigating risks to their clients and the community from – climate change impacts to physical infrastructure. The Extreme Weather, Climate Change and the Community Sector – Risks and Adaptations project examined the relationship between physical and social infrastructure (in the form of CSO service provision). Specifically, the ways in which the climate-driven failure of CSO service delivery worsens risks to the individuals and communities they serve and, on the other hand, how preparedness may reduce vulnerability to climate change and extreme weather impacts to human settlements and infrastructure.The research comprised a comprehensive and critical scoping, examination and review of existing research findings and an audit, examination and judgment-based evaluation of the current vulnerabilities and capacities of CSOs under projected climate change scenarios. It employed three key methods of consultation and data collection. A literature review examined research conducted to date in Australia and comparative countries internationally on the vulnerability and climate change adaptation needs of CSOs. A program of 10 Community Sector Professional Climate Workshops consulted over 150 CSO representatives to develop a qualitative record of extreme event and climate change risks and corresponding adaptation strategies specific to CSOs. A national survey of CSOs, which resulted in the participation of approximately 500 organisations, produced a quantitative data set about the nature of CSO vulnerability to climate change and extreme weather impacts to infrastructure, whether and how CSOs are approaching the adaptation task and key barriers to adaptation.While the methods employed and the absence of empirical data sets quantifying CSO vulnerability to climate change impacts create limitations to the evidence-base produced, findings from the research suggest that CSOs are highly vulnerable and not well prepared to respond to climate change and extreme weather impacts to physical infrastructure and that this underlying organisational vulnerability worsens the vulnerability of people experiencing poverty and inequality to climate change. However, the project results indicate that if well adapted, CSOs have the willingness, specialist skills, assets and capacity to make a major contribution to the resilience and adaptive capacity of their clients and the community more broadly (sections of which will be plunged into adversity by extreme events). Despite this willingness, the evidence presented shows that few CSOs have undertaken significant action to prepare for climate change and worsening extreme weather events. Key barriers to adaptation identified through the research are inadequate financial resources, lack of institutionalised knowledge and skills for adaptation and the belief that climate change adaptation is beyond the scope of CSOs core business. On the other hand, key indicators of organisational resilience to climate change and extreme weather impacts include: level of knowledge about extreme weather risks, past experience of an extreme weather event and organisational size.Given its size, scope and the critical role the Australian community sector plays in building client and community resilience and in assisting communities to respond to and recover from the devastating impacts of extreme weather events and natural disasters, the research identifies serious gaps in both the policy frameworks and the research base required to ensure the sector’s resilience and adaptive capacity – gaps which appear to have already had serious consequences. To address these gaps, a series of recommendations has been prepared to enable the development and implementation of a comprehensive, sector-specific adaptation and preparedness program, which includes mechanisms to institutionalise knowledge and skills, streamlined tools appropriate to the needs and capacity of a diverse range of organisations and a benchmarking system to allow progress towards resilience and preparedness to be monitored. Future research priorities for adaptation in this sector have also been identified

    Post-Disaster Road Reconstruction in Aceh - Local Governments’ Role in Road Maintenance

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    Many studies have shown the importance of improved road infrastructure towards economic development of a region through economic agglomeration and widened business network coverage resulting from better access and higher mobility. However, such benefit can only be achieved if road infrastructure remains accessible and reliable in the long term period. Accordingly, in addition to resources required for the construction, road management will also need to allocate adequate resources for the maintenance. In the event of major natural disasters, road infrastructure is among the sectors that often suffer from the greatest damages and losses. It is also suggested that reconstruction of road infrastructure is critical for a speedy recovery process. In the case of tsunami reconstruction in Aceh, Indonesia, poor road infrastructure is also argued to have caused delays and higher reconstruction cost. In most developing countries such as Indonesia, another important issue requiring particular attention is the ability and capability of local government in maintaining road infrastructures. In the post-tsunami reconstruction in Aceh, disregard to road classification and ownership status (national, Prov. or district), most of road reconstruction projects were either funded or co-funded by national government and donor agencies; which project outcomes were then transferred to local government. This resulted in giving additional burden to local governments with low technical and financial capacity for maintaining and ensuring the long term benefit of the investment, particularly where there are more road networks reconstructed than destroyed. Accordingly, this paper, which is based on an ongoing PhD study, discusses issues identified in the post-disaster road reconstruction in Aceh with regards to local governments’ capacity in road maintenance. The discussion includes regulations, policies and other aspects that contributed to the road management and maintenance within the context of Aceh post-tsunami reconstruction
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